diff --git a/mopidy_musicbox_webclient/static/js/gui.js b/mopidy_musicbox_webclient/static/js/gui.js
index aaafd49..1a372f4 100644
--- a/mopidy_musicbox_webclient/static/js/gui.js
+++ b/mopidy_musicbox_webclient/static/js/gui.js
@@ -565,7 +565,10 @@ $(document).ready(function (event) {
     $(window).resize(resizeMb).resize()
 
     // Connect to server
-    var websocketUrl = $(document.body).data('websocket-url')
+    //var websocketUrl = $(document.body).data('websocket-url')
+    var wsProto = "https:" === window.location.protocol ? "wss://" : "ws://";
+    var websocketUrl = wsProto + window.location.hostname +
+       window.location.pathname.replace("musicbox_webclient", "mopidy").match(/.*\//) + "ws";
     var connectOptions = {callingConvention: 'by-position-or-by-name'}
     if (websocketUrl) {
         connectOptions['webSocketUrl'] = websocketUrl